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# OpenCV Zoo
A zoo for models tuned for OpenCV DNN with benchmarks on different platforms.
Guidelines:
- To clone this repo, please install [git-lfs](https://git-lfs.github.com/), run `git lfs install` and use `git lfs clone https://github.com/opencv/opencv_zoo`.
- To run benchmark on your hardware settings, please refer to [benchmark/README](./benchmark/README.md).
- Understand model filename: `<topic>_<model_name>_<dataset>_<arch>_<upload_time>`
- `<topic>`: research topics, such as `face detection` etc.
- `<model_name>`: exact model names.
- `<dataset>`: (Optional) the dataset that the model is trained with.
- `<arch>`: (Optional) the backbone architecture of the model.
- `<upload_time>`: the time when the model is uploaded, meaning the latest version of this model unless specified.
## Models & Benchmarks
Hardware Setup:
- `CPU x86_64`: INTEL CPU i7-5930K @ 3.50GHz, 6 cores, 12 threads.
- `CPU ARM`: Raspberry 4B, BCM2711B0 @ 1.5GHz (Cortex A-72), 4 cores, 4 threads.
- `GPU CUDA`: NVIDIA Jetson Nano B01, 128-core Maxwell, Quad-core ARM A57 @ 1.43 GHz.
***Important Notes***:
- The time data that shown on the following table presents the time elapsed from preprocess (resize is excluded), to a forward pass of a network, and postprocess to get final results.
- The time data that shown on the following table is the median of 10 runs. Different metrics may be applied to some specific models.
- Batch size is 1 for all benchmark results.
- View [benchmark/config](./benchmark/config) for more details on benchmarking different models.
- `---` means this model is not availble to run on the device.
| Model | Input Size | CPU x86_64 (ms) | CPU ARM (ms) | GPU CUDA (ms) |
|-------|------------|-----------------|--------------|---------------|
| [YuNet](./models/face_detection_yunet) | 160x120 | 1.45 | 6.22 | 12.18 |
| [DB-IC15](./models/text_detection_db) | 640x480 | 142.91 | 2835.91 | 208.41 |
| [DB-TD500](./models/text_detection_db) | 640x480 | 142.91 | 2841.71 | 210.51 |
| [CRNN](./models/text_recognition_crnn) | 100x32 | 50.21 | 234.32 | 196.15 |
| [SFace](./models/face_recognition_sface) | 112x112 | 8.65 | 99.20 | 24.88 |
| [PP-ResNet](./models/image_classification_ppresnet) | 224x224 | 56.05 | 602.58 | 98.64 |
| [PP-HumanSeg](./models/human_segmentation_pphumanseg) | 192x192 | 19.92 | 105.32 | 67.97 |
| [WeChatQRCode](./models/qrcode_wechatqrcode) | 100x100 | 7.04 | 37.68 | --- |
| [DaSiamRPN](./models/object_tracking_dasiamrpn) | 1280x720 | 36.15 | 705.48 | 76.82 |
## License
OpenCV Zoo is licensed under the [Apache 2.0 license](./LICENSE). Please refer to licenses of different models.
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